Electric heater.



PATENTED APR. 23, 1907.

E. E. GOLD.

ELEUTRIU HEATER.

APPLICATION TILED MAY 4 190a.

3 SHEETS-SHEET l.

INVENTOR:

3 WW w %k PATENTED APR. 23, 1907.

E. E. GOLD.

ELECTRIC HEATER.

APPLIOATION FILED MAY 4, 1906.

3 SHEETS-BHEBT Z.

. INVENTOR:

FIG. 1/.

W VW/ WITNESSES: 54%

PATENTED APR. 23, 1907.

E. E. GOLD.

ELECTRIC HEATER.

APPLICATION FILED MAY 4, 1906.

3 SHEETS-BHBET 3.

INVENTOR: i i j WTNESSES: m!

L/ ma /924W I To all whom it may concern.-

. citizen of the United States, residing in the new and usefulImprovements in Electric tion.

'tecting the connections between the wires of tion of any other conduit.1 tical section of a truss-plank heater of the section of the'same.

ally to the embodiment of the invention illus- PATENT oFFIoE.

EDWARD E. GOLD, or NEW YORK, N- Y.

' ELECTRIC HEATER.

Specification of Letters Patent. Patented April 23, 1907.

Application filed May 4;, 1906. Serial No. 315.146.

Be it known that I, EDWARD E. G013, a

borough of Manhattan, city, county, and State of New York, have inventedcertain Heaters, of which the following is a specifica- My inventionaims to provide certain improvements designed for coverlng andproelectric heaters and the mains. For this purpose I provide anelectric car-heater having a chamber which constitutes a junctionbox forinclosing the ends of the line-wires leading into the heater. The wallofthe junction-box is preferably provided with a socket which receives theend of a conduit inclosing the line-wire, so that the wire is entirelyinclosed throughout thecar, increasing greatly the protection againstfire and improving the appearance.

The accompanying drawings illustrate ap plications of the invention to avariety of heaters.

Figure 1 shows in plan a pair of Gold standard electric heaters arrangedunder car-seats of a car. Fig. 2 is-an end elevation of one ofsuchheaters in position, the heater shown being supposed to be at-the end ofthe car. Fig. 3 is a horizgntal section through one of the heaters andthe junction-box. Fig. 4 is a horizontal section of the same at a lowerpoint. Fig. 5 is a side elevation of one of the junction-boxes. Fig. 6is an end elevation of the box. Fig. 7 is a plan of a pair 'of heaters,witha common junction-box. Fig. 8 is a horizontal section through suchjunctionbox. Fi 9 is a rear view of a style of heater adapted orattachment to the risers of longitudinal car-seats. Fig. 10 is a planthereof, showing the riser in section. Figs. 11 and 12 are similarview's with the heaters so close together that the junction-box extendsfrom one heater to the next without the interposi- Fig. 13 is a vertypeadapted for attachment to the trussplank of the car. Fig. 14 is ahorizontal section of the same. Fig. 15 is in art a front elevation andin part a vertical ongitudinal vThe-junction-boxes are all shown withthe Gold type of heaters; but they may be used with various other types.Referring specificthrough which the bolt G passes.

trated in Fig, 1, single heaters A are arranged one under each of theseats B of the car and are connected to each other by wires carriedthrough conduits O, of iron or other suitable material. Where the wiresrun into or out of the heater, a junction-box is provided, which Idesignate as a whole by the letter D.

In the single round heaters (shown in Figs 1 to 5) the junction-box 'isa round casing E, of

cation of the clamping-nut J and set-nut K.

A sheet L, of asbestos or of similar refractory material, is preferablyintroduced between the unction-box and the head F of the heater to serveas a fireproof packing. The junction-box has projections a a, whichenter recesses a a, Fig. 5, in the porcelain head F to prevent theheater from turning relatively to the box.

In the heater shown in Fig. 3 the electric connections are made abovethe central point The heater shown utilizes two coils ,\one above theother, supported on rods extending between heads F and F. Only theuppermost coil is shown. This coil M is supported upon a sinuousinsulating-rod N and is connected at one end to a binding-post O and atthe opposite end to a return-rod P. The binding-postO and return-rod Pproject into sockets Q in the outer end of the porcelain head F and areprovided with suitable Washers andclamping-nuts for-clamping the =endsof the wires R, which then pass out through'the asbestos end plate L andconstitute the eifective ends of the heater-wires, to which the main orline wires are to be connected.

The junction-box E is provided with sockets for receiving the ends ofthe conduits C.

There'may, for example, be a 'number of sockets S on the endfour in thecase shown, Fig. 6to receive two incoming wires and two outgoing onesand with a socket T on the under side for receiving the end of a conduitU, which extends downward below the floor of the car. Usually the boxesare man dicated by the arrows.

ufactured with the five sockets described, so that they may be used formaking connections to the end heater through a conduit, such as U, Fig.2, and for making connections between successive intermediate heaters inthe manner shown in Fig. 1. The sockets S are of such size as to receivethe ends of the conduits C and are pl'twided'with shoulders V, whichlimit the inward movement of the conduits, and with clampingscrews W,Fig. 5, which hold the conduits in position.

The main or line wires X are extended somewhat beyond the ends of theconduits and are bared, the usual flexible insulation Y being removed,and the ends of the wires X are then twisted or otherwise connected withthe ends of the heaterwires R. .In order to have access to the interiorof the junctionbox, a cover-plate 71, Figs. 5 and 6, is provided,fastened by screws (1?. The removal of the cover-plate opens an. entireside of the j unction-box and leaves plenty of room for the necessarymanipulations. Openings I) are provided on the inner end of the junctionbox for passing the wires K into the box, these openings being separatedby the bridge H.

Where the heaters A A are used in pairs, as in Figs. 7 and 8, the wireslead into the heater A at its inner end, then out of the heater A andinto the heater A at the outer ends of the heaters, and thence out fromthe inner end of the heater A in the manner in- The heaters beinganranged close together, one junction-box D is arranged to extend overthe adjacent ends of two heaters. The casing c in this case is oblongand is provided on its inner end at with projections e, fitting insuitable sockets in the heads F of the heaters, and with suit ableopenings for the reception of clampingbolts G, which, in conjunctionwith the projections e, hold the heaters in proper position relativelyto the box. The inner end of the junction-box has also suitableopenings 1) forthe admission of the heater-Wires R. For greateraccessibility in this case the entire outer endf of the casing isremovable, and the wires are let in andOut through holes 9 at the topand bottom of the box, respectively.

The riser-heaters (shown in Figs. 9 to 12) have their porcelain heads Fhalf-round instead of entirely circular. The wires in this case run insubstantially the same direction as the heaters themselves, and thejunctionbox consists of a frusto-conical casing h, overlapping the endof the porcelain head F of the heater and having flanges adapted to befastened to the riser or other backing, against which the casing k ofthe heater is fastened. These boxes are open entirely at -the' endadjacent to the head of the heater,

while the opposite end I is provided with openings 7a, through which theconduits C are admitted. it will be understood that the connections aremade in this case before the junction-boxes are applied. It is notnecessary to break off the wires R and make a separate connectionthereof with the linewires. The wires R may run continuously from one ofthe heaters to the next;constitut ing, in fact, the line-wires, the onlyjunction to be protected being that of the wires R with thebinding-posts of the heater.

Where the heaters A and A are very close together, as shown in Figs. 11and 12, the casings k for adjacent heaters may be united into a singlecylindrical casing h, which may be simply a trough-shaped piece of sheetmetal with suitable flanges j for fastening it to the backing after theconnections between the adjacent heaters havebeen made.

In the construction shown in Figs. 13 to 15 the truss-plank of the caris indicated at n. A backing-plate o is usually provided to preventoverheating the truss-plank and to dellect the air outward into the car,the backingplate being faced with asbestos or the like. Porcelain headsF are fastened to the backplate 0 and carry the coils and terminal wiresR in substantially the same manner as in the previous figures. The outercasing p of the heater may be applied after the connections have beenmade between the line-wire X and the heater-wire R and is provided withextensions (1 at the ends lying beyond the porcelain heads E and servingto inclose the junction of the wires, the extensions (1 of the casingbeing rovided with sockets .1" for the reception of t 10 ends of theconduits C. The entire casing p, with its extensions, is fas tened tothe truss-plank by means of flanges s, Fig. 15. l

Though I have described with great particularity of detail certainspecific embodiments of my invention, yet it is not to be un derstoodtherefrom that the invention is limited to the specific embodimentsdisclosed.

Various modifications in detail and in the arrangement and combinationof the'parts may be made by those skilled in the art without departurefrom the invention.

What I claim is 1. An electric car-heater having a resistance mediuminterposed between a air of opposite heads through at least one 0 whicha conducting-wire passes'and between which said medium is exposed to theair to heat it, and having a chamber outside of the head through whichsuch wire passes, said chamber constituting a junction-box for inclosingthe connection of such wire with the linewire leading to the heater.

2. An electric car-heater having a resist.- ancemedium interposedbetween a pair of opposite heads through at least one of which aconducting-wire passes and between'which said medium is exposed to theair to heat it, in combination with a separate casing form- 'nection ofsuch wire with the line-wire leadmg a chamber outside of the headthrough which such wire passes, said chamber constitutmg a junct1on-bo'xfor inclosing the coning to the heater. 3. An electric car heater havinga'chamber constitutin ha junction-box for inclosing the ends of theinc-wires leading into the heater, said junction-box having'a socket forreceiving the end of a conduit inclosing the linewire outside of theheater.

4.. The combination with an electric carheater, of a line-wire and aconduit inclosing the same, and a junction-box receiving the end of saidconduit and providing a space be; tween said conduit and the heater andinclosing the junction between the line-wire and the end of theheater-wire.

5. A detachable junction-box for an electric heater and having anopening for the passage of a wire and" having ahand-hole, and a movableplate covering said hole.

6. A detachable junction-box D for an electric heater and having anopening in its endfor the passage of a wireand having at its side ahand-hole, and a removable plate Z- covering said hole. 4

7. The combination with an electric heater of a junction-box thereforhaving a pair of openings for receiving a pair of parallel wires, andhaving also a single opening for receiving 1 for preventing relativerotative displace .ment, and means for fastening said bridge, to

said heater.

9. The combination with an electric heater, of a j unction-box having abridge H adjacent to the end of the heater, and fastening means foruniting said bridge to said heater.

I 10. The combination with an electric heater and conduits for theline-wires, of a junctionboX inclosing the joint between the wires ofthe conduits and heater respectively, attached to the heater, anddetachably engaging the conduits whereby it may be discon' nected fromthe conduits without displacing them and Without disconnecting it fromthe heater.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

EDWARD E. GOLD. Witnesses:

D. ANTHONY USINA, FRED WHITE.

